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A New Wasp from the Forested Mountains of Thailand
September 18, 2012 in Hymenoptera, Science | Tags: Aleiodes, DNA, gaga, Lady, mitochondrial, new, parasitoid, publicity, taxonomy, Thai, wasp | by Wayne | Leave a comment
The Sole Extant Specimen of the parasitoid wasp Aleiodes gaga
Voila, allow me to present Aleiodes gaga, a parasitoid wasp, which along with 178 other species, was discovered in the cloud rain forests of Thailand as part of a new biological survey seeking new life forms. The drab little 5mm wasp is named after the flamboyant New York singer songwriter Stefani Joanne Angelina Germanotta (who rose to international superstardome under the stage name of "Lady Gaga". The science/futurist website i09 somewhat cynically remarks, "As to why the researchers chose to "honor" Lady Gaga in this way is not entirely clear (they're likely seeking attention — in which case the name is wholly appropriate)."
The remarkable aspect of the survey is that the new species were swiftly identified and categorized by DNA barcode rather than through traditional taxonomic means. The team used a fragment of mitochondrial DNA to identify the various invertebrates which it discovered. However, the new methodology has critics in the world of scholarly taxonomy, who lament that spotting arbitrary genetic differences is replacement for actually understanding a creature's morphology, anatomy.
Scientists do not know about the habits of the gaga wasp, but they know that it is a parasitoid wasp, a class of hymenopterans which provide a useful biological check against various diseases, blights, and swarms. When malicious insects attack certain plants, the plants release specific chemicals which attract particular species of wasps (which then prey on the offending beetle, ant, larva, or whatever). A great many species of plants have particular wasps affiliated with them (since the wasp and the plant coevolved to meet each other's needs). Although such wasps provide an incalculable boon for both domestic and wild plants of all sorts, they are also the fodder for horrified screaming (since they tend to use mind control to render victims into zombies, which the wasp larvae then devour from within).
A Parasitoid Wasp injecting eggs into a paralyzed Hoverfly Larva
Most likely the wasp finds some local caterpillar, paralyzes it with a sting to the head, and lays its eggs inside the hapless victim. When the wasp larvae awake they devour the still living caterpillar. So to recap, this wasp 1) was discovered by means of a controversial technique; 2) was named in a naked bid for publicity; and 3) lays eggs inside its prey's head which subsequently cause aforementioned head to explode.
Lady Gaga wearing a red gothic crown and…um…a damask table cloth I guess.